Consider steady, parallel flow of atmospheric air over a flat plate. The air has a temperature and free stream velocity of 300 K 25 m/s?

(a) Evaluate the boundary layer thickness at distances of x = 1, 10, and 100 mm from the leading edge. If a second plate were installed parallel to and at a distance of 3 mm from the first plate, what is the distance from the leading edge at which boundary layer merger would occur?

(b) Evaluate the surface shear stress and the y-velocity component at the outer edge of the boundary layer for the single plate at x = 1, 10, and 100 mm.

(c) Comment on the validity of the boundary layer approximations.